A novel reconfigurable microstrip fractal UWB antenna with six variable rejection frequency bands

Nemati, Nasrin; Bemani, Mohammad

doi:10.1017/s1759078719001028

Cited by 11 publications

(4 citation statements)

References 17 publications

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“…The multiband antenna with reconfigurable and tunable characteristics have been implemented through using PIN diodes 35 – 38 , varactor diodes 39 – 43 and other active components(i.e. capacitors 44 , 45 , FETs 46 and MEMS switches 47 ). In 35 , a flexible and frequency-reconfigurable antenna with harmonic suppression have been proposed for multiple wireless applications, which produced various different frequency bands by utilizing PIN diodes, Meanwhile, the unwanted high-order mode interference signal has been effectively suppressed by introducing filter stub to the feedline.…”

Section: Introductionmentioning

confidence: 99%

A miniaturized microstrip antenna with tunable double band-notched characteristics for UWB applications

Zhang

Zhao

Xiao

et al. 2022

Sci Rep

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This paper proposes the step-by-step design procedure for obtaining independent dual band-notch performance, which provides a valuable method for designing tunable dual band-notched UWB antenna. The proposed antenna consists of the semicircle ring-like radiating patch with an elliptical-shaped slot and double split ring resonators on the top surface of the substrate and defected ground structure (DGS) on the bottom surface of the substrate. The operating frequencies ranged from 1.3 to 11.6 GHz (S11 < − 10 dB). By loading varactor diodes at the gap of the resonators structure and changing the varactor diode’s reverse bias voltage(0–30 V), a wider band-notched tuning range from 2.47–4.19 to 4.32–5.96 GHz can be achieved, which covers the whole WiMAX band and WLAN band. The experimental results agree well with the simulated results. The notched gain at notched frequency points is about − 5.3 dBi and − 5 dBi, demonstrating that the narrow-band interference signal could be efficiently suppressed. The security of UWB communication systems can be further enhanced. Meanwhile, the selection of varactor diode and DC bias circuit are fully considered. Hence, the accuracy of the experiment results and antenna operating performance have been improved. Furthermore, the proposed antenna only has an electrical size of 0.26λ*0.19λ at 1.3 GHz. Compared to the related reported antennas, the proposed antenna has achieved a simpler structure, low profile, compact size, tunable dual band-notched characteristics, extensive independent tunable range, and good band-notched performance simultaneously, to the best of our knowledge. The proposed antenna is believed to have a valuable prospect in UWB communication, Wireless Body Area Network, Industry Science Medicine, mobile communication applications, etc.

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Section: Introductionmentioning

confidence: 99%

A miniaturized microstrip antenna with tunable double band-notched characteristics for UWB applications

Zhang

Zhao

Xiao

et al. 2022

Sci Rep

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“…However, the variety of patch antenna topologies is enormous at the moment and far from being limited to these fundamental designs. Patch antennas are frequently taking on more complicated shapes and even fractal patterns in order to increase their parameters and efficiency [ 5 , 6 ]. Various structures, such as the Defected Ground Structure (DGS), can also be used to improve the parameters of antennas [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Various Technologies on the Quality of Ultra-Wideband Antenna on a Polymeric Substrate

et al. 2022

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The design, simulation, realization, and measurement of an ultra-wideband (UWB) antenna on a polymeric substrate have been realized. The UWB antenna was prepared using conventional technology, such as copper etching; inkjet printing, which is regarded as a modern and progressive nano-technology; and polymer thick-film technology in the context of screen-printing technology. The thick-film technology-based UWB antenna has a bandwidth of 3.8 GHz, with a central frequency of 9 GHz, and a frequency range of 6.6 to 10.4 GHz. In addition to a comparison of the technologies described, the results show that the mesh of the screens has a significant impact on the quality of the UWB antenna when utilizing polymeric screen-printing pastes. Last but not least, the eco-friendly combination of polyimide substrate and graphene-based screen-printing paste is thoroughly detailed. From 5 to 9.42 GHz, the graphene-based UWB antenna achieved a bandwidth of 4.42 GHz. The designed and realized UWB antenna well exceeds the Federal Communications Commission’s (FCC) standards for UWB antenna definition. The modification of the energy surface of the polyimide substrate by plasma treatment is also explained in this paper, in addition to the many types of screen-printing pastes and technologies. According to the findings, plasma treatment improved the bandwidth of UWB antennas to 5.45 GHz, and the combination of plasma treatment with graphene provides a suitable replacement for traditional etching technologies. The characteristics of graphene-based pastes can also be altered by plasma treatment in terms of their usability on flexible substrates.

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“…There is a reconfigurable method that can generate, remove, and move the band notch [23]. However, if this method is used to achieve continuous movement of the band [25] Adjusting PIN diode Y N N [26] Adjusting PIN diode N Y N [27] Adjusting Varactor diodes N Y Y [28] Adjusting 10 ideal MEMS switches N Y N…”

Section: Introductionmentioning

confidence: 99%

Design of a Reconfigurable Band Notch Antenna for UWB Applications

Hua¹,

He²,

Sun³

et al. 2022

PIER C

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In order to improve the practicability and versatility of ultra-wideband (UWB) antennas, a reconfigurable band notch antenna is proposed in this paper. It has a compact size of 18 mm × 16 mm × 1.6 mm. The reconfigurable band notch function is realized by two small tunable units. The tunable unit makes up of a split ring resonator (SRR), a dielectric substrate, and a varactor diode. The simulation results show that the antenna combines the functions of band notch emergence, removal, and movement. The applied reconfigurable method can effectively broaden the continuous movement range of band notch. The measurement proves that the antenna has the band notch reconfigurable function, and the measured results are in good agreement with the simulation ones. The radiation patterns are measured, which are stable and consistent under two modes with and without band notch, showing omnidirectional radiation characteristics. These research results provide reference value for the design of band notch UWB antenna shielding civil narrowband communication band.

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A novel reconfigurable microstrip fractal UWB antenna with six variable rejection frequency bands

Cited by 11 publications

References 17 publications

A miniaturized microstrip antenna with tunable double band-notched characteristics for UWB applications

A miniaturized microstrip antenna with tunable double band-notched characteristics for UWB applications

Influence of Various Technologies on the Quality of Ultra-Wideband Antenna on a Polymeric Substrate

Design of a Reconfigurable Band Notch Antenna for UWB Applications

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